Upstart candidate Doug Biviano is continuing to lob accusations at the perceived frontrunners in the 33rd City Council District Democratic Primary race.

Those front runners include Steve Levin, former Chief of staff for Assembly member and Kings County Democratic Boss Vito Lopez, Jo Anne Simon, the 52nd Assembly Democratic District leader, and Evan Thies, the former chief of staff for outgoing City Council member David Yassky.

Also in the race are Ken Diamondstone, Ken Baer and Isaac Abraham.

Biviano, the self-claimed reform candidate, recently tossed out accusations that Simon is pocketing campaign contributions from developers and real estate interests, and that Thies is behind the anonymous attack blog, Real Reform Brooklyn.

In the press release in both cases, he manages to lump in Levin as part of a political machine.

In Simon’s case, Biviano alleges that Simon has received $10,498 from big developers and real estate interests.

“Jo Anne’s been a district leader for a long time now, and we continue to see the same old business-as-usual approach from her,” said Biviano. “She won’t stand up to [Democratic Party boss] Vito Lopez’s corrupt tactics, and now we learn she’s taking a page out of his playbook and stuffing her campaign coffers with money from developers and real estate interests.”

Biviano’s campaign also provided a list of these developers with the biggest coming from her husband, William Harris, a real estate broker who gave his wife’s campaign $4,250.

Of the other names on the list, none stick out as major players in real estate and development with the exception of Muss Development, owners of the Brooklyn Marriott and other developments around Downtown Brooklyn, which gave Simon $250.

Typically big developers hedge their bets and spread small donations to all the frontrunners in a race.

Simon’s campaign manager, Kelly Donnelly responded that it’s unfortunate that some campaigns would rather run a negative campaign, taken straight from the Karl Rove handbook, where they purposely distort the facts rather than run an honest campaign about the issues.

“Jo Anne has consistently said she would not take money from developers and that remains true, despite any assertions to the contrary. She is proud to have received the most grassroots contributions from any other candidate in this race,” said Donnelly.

Biviano also charged that Thies is behind the anonymous attack blog, Real Reform Brooklyn, which tears into Simon, Levin and Biviano while treating Thies with kid gloves.

“Not only has Evan violated his stated pledge to run a positive campaign, he doesn’t have the backbone to stand up in the light of day and criticize his opponents openly and honestly,” said Biviano.

Thies campaign manger Kevin Lawler dismissed the allegation.

“We have nothing to do with it (the blog),” said Lawler. “We’re busy running a campaign.”